65 lines
No EOL
2.3 KiB
Python
65 lines
No EOL
2.3 KiB
Python
# database/connection.py
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import sqlite3
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import os
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def get_connection():
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# Force the path to be absolute relative to the project folder
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db_path = os.path.abspath("spanish_trainer.db")
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return sqlite3.connect(db_path)
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def init_db():
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print("🛠️ Constructing relational database schema...")
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conn = get_connection()
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cursor = conn.cursor()
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# Enable foreign keys explicitly for this connection instance
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cursor.execute("PRAGMA foreign_keys = ON;")
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# 1. Phrases Table (Holds individual localized text strings)
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cursor.execute("""
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CREATE TABLE IF NOT EXISTS phrases (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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text TEXT NOT NULL,
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language TEXT NOT NULL,
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textbook TEXT,
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unit INTEGER,
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source_context TEXT,
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word_type TEXT,
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grammar_note TEXT,
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voice_gender TEXT DEFAULT 'female',
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base_speed REAL DEFAULT 1.0,
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created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
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);
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""")
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# 2. Translations Table (The relational tie binding English and Spanish IDs together)
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cursor.execute("""
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CREATE TABLE IF NOT EXISTS translations (
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translation_id INTEGER PRIMARY KEY AUTOINCREMENT,
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source_phrase_id INTEGER,
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target_phrase_id INTEGER,
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deck_name TEXT DEFAULT 'General',
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FOREIGN KEY (source_phrase_id) REFERENCES phrases(id) ON DELETE CASCADE,
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FOREIGN KEY (target_phrase_id) REFERENCES phrases(id) ON DELETE CASCADE
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);
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""")
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# 3. Audio Tracks Table (Links phrase items to local disk storage clips)
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cursor.execute("""
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CREATE TABLE IF NOT EXISTS audio_tracks (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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phrase_id INTEGER,
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file_path TEXT NOT NULL,
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FOREIGN KEY (phrase_id) REFERENCES phrases(id) ON DELETE CASCADE
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);
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""")
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# CRITICAL: Force SQLite to physically commit the table architectures to disk
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conn.commit()
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# Verification Sweep: Double-check that tables actually exist before we hand over control
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cursor.execute("SELECT name FROM sqlite_master WHERE type='table';")
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tables = [row[0] for row in cursor.fetchall()]
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conn.close()
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print(f"✅ Database tables physically confirmed on disk: {tables}") |